"I had a couple of mentoring sessions with Klaas, and they all were very insightful and helpful. He helped me tailor my resume and gave really good recommendations - I had an impression, that he is a very good communicator, because he knew precisely how to shape and formulate the right message. He was also very reliable and followed up on all the questions that were left after the session. I can very much recommend Klaas as an insightful and experienced mentor!"